|Publication number||US4426071 A|
|Application number||US 06/347,446|
|Publication date||Jan 17, 1984|
|Filing date||Feb 9, 1982|
|Priority date||Feb 13, 1981|
|Also published as||EP0058411A1|
|Publication number||06347446, 347446, US 4426071 A, US 4426071A, US-A-4426071, US4426071 A, US4426071A|
|Inventors||Sven M. Klevstad|
|Original Assignee||Landstingens Inkopscentral, Lic, Ekonomisk Forening|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (90), Classifications (16), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present invention relates to obstetrical tables and more particularly to a leg supporting device for such tables.
Modern obstetrical tables can be adjusted to a number of positions to support the patient in a lying position, a sitting position or any intermediate position. To enable this the table has a back portion which may be swung from a horizontal lying position to an upright sitting position. The table has further an intermediate seat portion which is secured to the frame of the table and which forms a seat for the patient. Furthermore, the table has a leg supporting portion which may be placed in a position flush with the seat portion and which may be lowered and inserted partially or completely to a position under the seat portion and the back portion.
At each side of the table frame there is provided an attachment head for an adjustable shaft supporting a foot rest at its end. The shaft is displaceable in the head for adjustment to various leg lengths and the head enables further any desired vertical angular position of the shaft to adjust the height position of the foot rest. An obstetrical table of this kind is disclosed in the Swedish Pat. Nos. 342,549 and 355,723. However, the possibilities of adjusting the position of the foot rests are rather limited since the foot rest supporting shafts can only be angularly adjusted in one plane only. Furthermore, there are no supports for the thighs.
Further, it is also known from U.S. Pat. Nos. 1,622,313, 2,067,891 and 2,306,031 to have the foot rests combined with thigh supports. However, the possibilities of adjusting the known leg supporting devices are insufficient for various desired positions of the patient.
The object of the invention is therefore to provide a leg supporting device for obstetrical tables including a pair of foot rests and a pair of thigh supports which may be adjusted individually and as a unit to a greater extent than hitherto possible with known devices.
This is attained with a leg supporting device according to the invention as defined hereinafter.
A suitable embodiment of the leg supporting device according to the invention is diagrammatically shown in the accompanying drawings.
FIG. 1 is a diagrammatic perspective view of the table adjusted for a sitting position of the patient with the legs supported on a thigh support and a foot rest at either side of the table.
FIG. 2 is a partial perspective view of the leg supporting device at the right hand side of the table in FIG. 1.
FIG. 3 is a sectional view of the rotatable attachment head supporting the foot rest.
FIG. 4 is a detail front view of the bracket member secured to the frame of the table and rotatably supporting the attachment head.
FIG. 5 is a plan view of the bracket member in FIG. 4.
FIG. 6 is a perspective view of the resting position of the thigh supports, the foot rests being in a position to support the patient's feet.
FIG. 7 is a side view of the table in a position where the patient has the thighs substantially vertical and the lower legs supported by inverted foot rests.
As shown in FIG. 7, the table frame 10 is carried by a vertically adjustable column 11 and is tiltable about an axis 12.
The table 13 comprises three separate portions, namely a back portion 14 adjustable to various angular positions, an intermediate seat portion 15 secured to the frame 10, and a leg portion 16 which may be placed in a position flush with the seat portion 15 or lowered and partially or completely inserted to a position under the seat portion 15 in a manner known per se.
At both sides of the frame 10 is provided a leg supporting device 17,18 which includes an adjustable foot rest 19,20 and an adjustable thigh support 21,22. Only the right hand device 17 will be described in detail in the following.
Secured by bolts to the side of the frame 10 is a bracket member 23 shown in detail in FIGS. 4 and 5.
The bracket member 23 has a mounting plate 24 bolted to the frame 10 and is provided with a socket 25 having a vertical cylindrical bore 26 for receiving the cylindrical portion 27 (FIG. 3) of a bushing 28 which has a flange 29 resting on the top 30 (FIG. 4) of the socket 25.
The cylindrical bore 31 of the bushing guides a cylindrical vertical shaft 32 which may be adjusted to any desired vertical and angular position respectively in the bushing and may be locked thereto by any suitable means such as a locking bolt 33.
Similarly, the bushing 28 may be locked in the socket 25 by any suitable means such as a locking bolt 34.
A circular plate 35 is welded to the flange 29 of the bushing 28 and is provided with a horizontal journal 36 which carries a rotatable attachment head 37.
The head has a cylindrical bore 38 extending at right angles to the journal 36 for guiding a shaft 39 which may be locked in the bore. To this end the head comprises two discs or blocks 40,41 rotatably mounted on the pin 36 but locked against relative rotation by a pin 42.
The two blocks are formed each with a half of the bore 38, and by means of a threaded pressure member 43 operated by a lever 44, the two blocks may be pressed together and against the plate 35 to clamp the shaft 39 and lock the same as well as locking the head 37 against rotation.
In the embodiment shown, the shaft 39 has annular grooves 45 into which a spring actuated locking pin 46 may engage to lock the shaft against axial displacement.
The shaft 39 carries at its forward end a transverse sleeve 47 in which a shaft 48 is rotatably and displaceably mounted and can be locked by means of a locking screw operated by a lever 49. The foot rest 19 can accordingly be adjusted to various angular positions as well as axial positions relative to the sleeve 47.
The foot rest 19 has its one side shaped to form a foot rest surface, whereas its opposite side (bottom side in FIG. 2) may be shaped to form a support surface 51 for the lower leg of the patient's legs when the patient is lying with the thighs substantially vertical as illustrated in FIG. 7, in which the shafts 32 with the thigh supports 21 and 22, respectively, have been removed. In FIG. 7, the foot rests 19,20 may be swung inwards or outwards by swinging the head 37 about the axis of the bore 26 in the socket 25.
The thigh support 21 is pivotally mounted on a holder 52 (FIG. 2) to pivot about a transverse axis 53, and the holder is rotatably mounted to rotate about an axis 54 defined by a journal 55 mounted at right angles to a carrying arm 56 which is displaceably mounted in sleeve 57 secured to the top end of shaft 32 at right angles to the same. A locking screw 58 is used to lock the arm 56 in the sleeve 57.
The leg supporting devices 17,18 according to the invention are particularly useful when the doctor assisting at the birth is sitting in front of the mother lying or sitting on the table with the leg portion 16 partially or completely retracted to a position under the seat portion 15.
The mother's legs can be comfortably supported in any desired position by adjusting the foot rests and the thigh supports to the desired positions. Thereafter, each bushing 28 will support a locked unit having a foot rest and a thigh support, whereafter this unit may be swung inwardly or outwardly to obtain a further adjustment of the angle between the mother's legs without any need of individual readjustments of the foot rest and the thigh support, respectively.
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|U.S. Classification||5/602, 5/624, 5/613|
|International Classification||A61G15/00, A61G13/12|
|Cooperative Classification||A61G13/12, A61G13/125, A61G13/1245, A61G13/124, A61G13/1285, A61G15/005, A61G13/101, A61G13/1225, A61G13/1235|
|European Classification||A61G13/12, A61G15/00E|
|Feb 9, 1982||AS||Assignment|
Owner name: LANDSTINGENS INKOOSCENTRAL, LIC, EKONOMISK FORENIN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KLEVSTAD, SVEN M.;REEL/FRAME:003976/0846
Effective date: 19820122
|Aug 21, 1987||REMI||Maintenance fee reminder mailed|
|Jan 17, 1988||LAPS||Lapse for failure to pay maintenance fees|
|Apr 5, 1988||FP||Expired due to failure to pay maintenance fee|
Effective date: 19880117